/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 * ECDH support in OpenSSL originally developed by
 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 */

#ifndef HEADER_X509_H
#define HEADER_X509_H

#include <openssl/base.h>

#include <time.h>

#include <openssl/asn1.h>
#include <openssl/bio.h>
#include <openssl/cipher.h>
#include <openssl/dh.h>
#include <openssl/dsa.h>
#include <openssl/ecdh.h>
#include <openssl/ecdsa.h>
#include <openssl/ec.h>
#include <openssl/evp.h>
#include <openssl/obj.h>
#include <openssl/pkcs7.h>
#include <openssl/pool.h>
#include <openssl/rsa.h>
#include <openssl/sha.h>
#include <openssl/stack.h>
#include <openssl/thread.h>

#ifdef __cplusplus
extern "C" {
#endif

/* Legacy X.509 library.
 *
 * This header is part of OpenSSL's X.509 implementation. It is retained for
 * compatibility but otherwise underdocumented and not actively maintained. In
 * the future, a replacement library will be available. Meanwhile, minimize
 * dependencies on this header where possible. */

#define X509_FILETYPE_PEM 1
#define X509_FILETYPE_ASN1 2
#define X509_FILETYPE_DEFAULT 3

#define X509v3_KU_DIGITAL_SIGNATURE 0x0080
#define X509v3_KU_NON_REPUDIATION 0x0040
#define X509v3_KU_KEY_ENCIPHERMENT 0x0020
#define X509v3_KU_DATA_ENCIPHERMENT 0x0010
#define X509v3_KU_KEY_AGREEMENT 0x0008
#define X509v3_KU_KEY_CERT_SIGN 0x0004
#define X509v3_KU_CRL_SIGN 0x0002
#define X509v3_KU_ENCIPHER_ONLY 0x0001
#define X509v3_KU_DECIPHER_ONLY 0x8000
#define X509v3_KU_UNDEF 0xffff

DEFINE_STACK_OF(X509_ALGOR)
DECLARE_ASN1_SET_OF(X509_ALGOR)

typedef STACK_OF(X509_ALGOR) X509_ALGORS;

struct X509_val_st {
    ASN1_TIME* notBefore;
    ASN1_TIME* notAfter;
} /* X509_VAL */;

struct X509_pubkey_st {
    X509_ALGOR* algor;
    ASN1_BIT_STRING* public_key;
    EVP_PKEY* pkey;
};

struct X509_sig_st {
    X509_ALGOR* algor;
    ASN1_OCTET_STRING* digest;
} /* X509_SIG */;

struct X509_name_entry_st {
    ASN1_OBJECT* object;
    ASN1_STRING* value;
    int set;
    int size; /* temp variable */
} /* X509_NAME_ENTRY */;

DEFINE_STACK_OF(X509_NAME_ENTRY)
DECLARE_ASN1_SET_OF(X509_NAME_ENTRY)

/* we always keep X509_NAMEs in 2 forms. */
struct X509_name_st {
    STACK_OF(X509_NAME_ENTRY) * entries;
    int modified; /* true if 'bytes' needs to be built */
    BUF_MEM* bytes;
    /*	unsigned long hash; Keep the hash around for lookups */
    unsigned char* canon_enc;
    int canon_enclen;
} /* X509_NAME */;

DEFINE_STACK_OF(X509_NAME)

struct X509_extension_st {
    ASN1_OBJECT* object;
    ASN1_BOOLEAN critical;
    ASN1_OCTET_STRING* value;
} /* X509_EXTENSION */;

typedef STACK_OF(X509_EXTENSION) X509_EXTENSIONS;

DEFINE_STACK_OF(X509_EXTENSION)
DECLARE_ASN1_SET_OF(X509_EXTENSION)

/* a sequence of these are used */
struct x509_attributes_st {
    ASN1_OBJECT* object;
    int single; /* 0 for a set, 1 for a single item (which is wrong) */
    union {
        char* ptr;
        /* 0 */ STACK_OF(ASN1_TYPE) * set;
        /* 1 */ ASN1_TYPE* single;
    } value;
} /* X509_ATTRIBUTE */;

DEFINE_STACK_OF(X509_ATTRIBUTE)
DECLARE_ASN1_SET_OF(X509_ATTRIBUTE)

struct X509_req_info_st {
    ASN1_ENCODING enc;
    ASN1_INTEGER* version;
    X509_NAME* subject;
    X509_PUBKEY* pubkey;
    /*  d=2 hl=2 l=  0 cons: cont: 00 */
    STACK_OF(X509_ATTRIBUTE) * attributes; /* [ 0 ] */
} /* X509_REQ_INFO */;

struct X509_req_st {
    X509_REQ_INFO* req_info;
    X509_ALGOR* sig_alg;
    ASN1_BIT_STRING* signature;
    CRYPTO_refcount_t references;
} /* X509_REQ */;

struct x509_cinf_st {
    ASN1_INTEGER* version; /* [ 0 ] default of v1 */
    ASN1_INTEGER* serialNumber;
    X509_ALGOR* signature;
    X509_NAME* issuer;
    X509_VAL* validity;
    X509_NAME* subject;
    X509_PUBKEY* key;
    ASN1_BIT_STRING* issuerUID;            /* [ 1 ] optional in v2 */
    ASN1_BIT_STRING* subjectUID;           /* [ 2 ] optional in v2 */
    STACK_OF(X509_EXTENSION) * extensions; /* [ 3 ] optional in v3 */
    ASN1_ENCODING enc;
} /* X509_CINF */;

/* This stuff is certificate "auxiliary info"
 * it contains details which are useful in certificate
 * stores and databases. When used this is tagged onto
 * the end of the certificate itself
 */

struct x509_cert_aux_st {
    STACK_OF(ASN1_OBJECT) * trust;  /* trusted uses */
    STACK_OF(ASN1_OBJECT) * reject; /* rejected uses */
    ASN1_UTF8STRING* alias;         /* "friendly name" */
    ASN1_OCTET_STRING* keyid;       /* key id of private key */
    STACK_OF(X509_ALGOR) * other;   /* other unspecified info */
} /* X509_CERT_AUX */;

DECLARE_STACK_OF(DIST_POINT)
DECLARE_STACK_OF(GENERAL_NAME)

struct x509_st {
    X509_CINF* cert_info;
    X509_ALGOR* sig_alg;
    ASN1_BIT_STRING* signature;
    CRYPTO_refcount_t references;
    char* name;
    CRYPTO_EX_DATA ex_data;
    /* These contain copies of various extension values */
    long ex_pathlen;
    long ex_pcpathlen;
    unsigned long ex_flags;
    unsigned long ex_kusage;
    unsigned long ex_xkusage;
    unsigned long ex_nscert;
    ASN1_OCTET_STRING* skid;
    AUTHORITY_KEYID* akid;
    X509_POLICY_CACHE* policy_cache;
    STACK_OF(DIST_POINT) * crldp;
    STACK_OF(GENERAL_NAME) * altname;
    NAME_CONSTRAINTS* nc;
    unsigned char sha1_hash[SHA_DIGEST_LENGTH];
    X509_CERT_AUX* aux;
    CRYPTO_BUFFER* buf;
    CRYPTO_MUTEX lock;
} /* X509 */;

DEFINE_STACK_OF(X509)
DECLARE_ASN1_SET_OF(X509)

/* This is used for a table of trust checking functions */

struct x509_trust_st {
    int trust;
    int flags;
    int (*check_trust)(struct x509_trust_st*, X509*, int);
    char* name;
    int arg1;
    void* arg2;
} /* X509_TRUST */;

DEFINE_STACK_OF(X509_TRUST)

/* standard trust ids */

#define X509_TRUST_DEFAULT (-1) /* Only valid in purpose settings */

#define X509_TRUST_COMPAT 1
#define X509_TRUST_SSL_CLIENT 2
#define X509_TRUST_SSL_SERVER 3
#define X509_TRUST_EMAIL 4
#define X509_TRUST_OBJECT_SIGN 5
#define X509_TRUST_OCSP_SIGN 6
#define X509_TRUST_OCSP_REQUEST 7
#define X509_TRUST_TSA 8

/* Keep these up to date! */
#define X509_TRUST_MIN 1
#define X509_TRUST_MAX 8

/* trust_flags values */
#define X509_TRUST_DYNAMIC 1
#define X509_TRUST_DYNAMIC_NAME 2

/* check_trust return codes */

#define X509_TRUST_TRUSTED 1
#define X509_TRUST_REJECTED 2
#define X509_TRUST_UNTRUSTED 3

/* Flags for X509_print_ex() */

#define X509_FLAG_COMPAT 0
#define X509_FLAG_NO_HEADER 1L
#define X509_FLAG_NO_VERSION (1L << 1)
#define X509_FLAG_NO_SERIAL (1L << 2)
#define X509_FLAG_NO_SIGNAME (1L << 3)
#define X509_FLAG_NO_ISSUER (1L << 4)
#define X509_FLAG_NO_VALIDITY (1L << 5)
#define X509_FLAG_NO_SUBJECT (1L << 6)
#define X509_FLAG_NO_PUBKEY (1L << 7)
#define X509_FLAG_NO_EXTENSIONS (1L << 8)
#define X509_FLAG_NO_SIGDUMP (1L << 9)
#define X509_FLAG_NO_AUX (1L << 10)
#define X509_FLAG_NO_ATTRIBUTES (1L << 11)
#define X509_FLAG_NO_IDS (1L << 12)

/* Flags specific to X509_NAME_print_ex() */

/* The field separator information */

#define XN_FLAG_SEP_MASK (0xf << 16)

#define XN_FLAG_COMPAT 0                 /* Traditional SSLeay: use old X509_NAME_print */
#define XN_FLAG_SEP_COMMA_PLUS (1 << 16) /* RFC2253 ,+ */
#define XN_FLAG_SEP_CPLUS_SPC (2 << 16)  /* ,+ spaced: more readable */
#define XN_FLAG_SEP_SPLUS_SPC (3 << 16)  /* ;+ spaced */
#define XN_FLAG_SEP_MULTILINE (4 << 16)  /* One line per field */

#define XN_FLAG_DN_REV (1 << 20) /* Reverse DN order */

/* How the field name is shown */

#define XN_FLAG_FN_MASK (0x3 << 21)

#define XN_FLAG_FN_SN 0           /* Object short name */
#define XN_FLAG_FN_LN (1 << 21)   /* Object long name */
#define XN_FLAG_FN_OID (2 << 21)  /* Always use OIDs */
#define XN_FLAG_FN_NONE (3 << 21) /* No field names */

#define XN_FLAG_SPC_EQ (1 << 23) /* Put spaces round '=' */

/* This determines if we dump fields we don't recognise:
 * RFC2253 requires this.
 */

#define XN_FLAG_DUMP_UNKNOWN_FIELDS (1 << 24)

#define XN_FLAG_FN_ALIGN (1 << 25) /* Align field names to 20 characters */

/* Complete set of RFC2253 flags */

#define XN_FLAG_RFC2253                                                                                                \
    (ASN1_STRFLGS_RFC2253 | XN_FLAG_SEP_COMMA_PLUS | XN_FLAG_DN_REV | XN_FLAG_FN_SN | XN_FLAG_DUMP_UNKNOWN_FIELDS)

/* readable oneline form */

#define XN_FLAG_ONELINE                                                                                                \
    (ASN1_STRFLGS_RFC2253 | ASN1_STRFLGS_ESC_QUOTE | XN_FLAG_SEP_CPLUS_SPC | XN_FLAG_SPC_EQ | XN_FLAG_FN_SN)

/* readable multiline form */

#define XN_FLAG_MULTILINE                                                                                              \
    (ASN1_STRFLGS_ESC_CTRL | ASN1_STRFLGS_ESC_MSB | XN_FLAG_SEP_MULTILINE | XN_FLAG_SPC_EQ | XN_FLAG_FN_LN |           \
     XN_FLAG_FN_ALIGN)

struct x509_revoked_st {
    ASN1_INTEGER* serialNumber;
    ASN1_TIME* revocationDate;
    STACK_OF(X509_EXTENSION) /* optional */ * extensions;
    /* Set up if indirect CRL */
    STACK_OF(GENERAL_NAME) * issuer;
    /* Revocation reason */
    int reason;
    int sequence; /* load sequence */
};

DEFINE_STACK_OF(X509_REVOKED)
DECLARE_ASN1_SET_OF(X509_REVOKED)

struct X509_crl_info_st {
    ASN1_INTEGER* version;
    X509_ALGOR* sig_alg;
    X509_NAME* issuer;
    ASN1_TIME* lastUpdate;
    ASN1_TIME* nextUpdate;
    STACK_OF(X509_REVOKED) * revoked;
    STACK_OF(X509_EXTENSION) /* [0] */ * extensions;
    ASN1_ENCODING enc;
} /* X509_CRL_INFO */;

DECLARE_STACK_OF(GENERAL_NAMES)

struct X509_crl_st {
    /* actual signature */
    X509_CRL_INFO* crl;
    X509_ALGOR* sig_alg;
    ASN1_BIT_STRING* signature;
    CRYPTO_refcount_t references;
    int flags;
    /* Copies of various extensions */
    AUTHORITY_KEYID* akid;
    ISSUING_DIST_POINT* idp;
    /* Convenient breakdown of IDP */
    int idp_flags;
    int idp_reasons;
    /* CRL and base CRL numbers for delta processing */
    ASN1_INTEGER* crl_number;
    ASN1_INTEGER* base_crl_number;
    unsigned char sha1_hash[SHA_DIGEST_LENGTH];
    STACK_OF(GENERAL_NAMES) * issuers;
    const X509_CRL_METHOD* meth;
    void* meth_data;
} /* X509_CRL */;

DEFINE_STACK_OF(X509_CRL)
DECLARE_ASN1_SET_OF(X509_CRL)

struct private_key_st {
    int version;
    /* The PKCS#8 data types */
    X509_ALGOR* enc_algor;
    ASN1_OCTET_STRING* enc_pkey; /* encrypted pub key */

    /* When decrypted, the following will not be NULL */
    EVP_PKEY* dec_pkey;

    /* used to encrypt and decrypt */
    int key_length;
    char* key_data;
    int key_free; /* true if we should auto free key_data */

    /* expanded version of 'enc_algor' */
    EVP_CIPHER_INFO cipher;
} /* X509_PKEY */;

#ifndef OPENSSL_NO_EVP
struct X509_info_st {
    X509* x509;
    X509_CRL* crl;
    X509_PKEY* x_pkey;

    EVP_CIPHER_INFO enc_cipher;
    int enc_len;
    char* enc_data;

} /* X509_INFO */;

DEFINE_STACK_OF(X509_INFO)
#endif

/* The next 2 structures and their 8 routines were sent to me by
 * Pat Richard <patr@x509.com> and are used to manipulate
 * Netscapes spki structures - useful if you are writing a CA web page
 */
struct Netscape_spkac_st {
    X509_PUBKEY* pubkey;
    ASN1_IA5STRING* challenge; /* challenge sent in atlas >= PR2 */
} /* NETSCAPE_SPKAC */;

struct Netscape_spki_st {
    NETSCAPE_SPKAC* spkac; /* signed public key and challenge */
    X509_ALGOR* sig_algor;
    ASN1_BIT_STRING* signature;
} /* NETSCAPE_SPKI */;

/* PKCS#8 private key info structure */

struct pkcs8_priv_key_info_st {
    int broken; /* Flag for various broken formats */
#define PKCS8_OK 0
#define PKCS8_NO_OCTET 1
#define PKCS8_EMBEDDED_PARAM 2
#define PKCS8_NS_DB 3
#define PKCS8_NEG_PRIVKEY 4
    ASN1_INTEGER* version;
    X509_ALGOR* pkeyalg;
    ASN1_TYPE* pkey; /* Should be OCTET STRING but some are broken */
    STACK_OF(X509_ATTRIBUTE) * attributes;
};

#ifdef __cplusplus
}
#endif

#include <openssl/x509_vfy.h>

#ifdef __cplusplus
extern "C" {
#endif

#define X509_get_version(x) ASN1_INTEGER_get((x)->cert_info->version)
/* #define	X509_get_serialNumber(x) ((x)->cert_info->serialNumber) */
#define X509_get_notBefore(x) ((x)->cert_info->validity->notBefore)
#define X509_get_notAfter(x) ((x)->cert_info->validity->notAfter)
#define X509_get_cert_info(x) ((x)->cert_info)
#define X509_extract_key(x) X509_get_pubkey(x) /*****/
#define X509_REQ_get_version(x) ASN1_INTEGER_get((x)->req_info->version)
#define X509_REQ_get_subject_name(x) ((x)->req_info->subject)
#define X509_REQ_extract_key(a) X509_REQ_get_pubkey(a)
#define X509_name_cmp(a, b) X509_NAME_cmp((a), (b))
#define X509_get_signature_type(x) EVP_PKEY_type(OBJ_obj2nid((x)->sig_alg->algorithm))

#define X509_CRL_get_version(x) ASN1_INTEGER_get((x)->crl->version)
const ASN1_TIME* X509_CRL_get0_lastUpdate(const X509_CRL* crl);
const ASN1_TIME* X509_CRL_get0_nextUpdate(const X509_CRL* crl);
#define X509_CRL_get_lastUpdate(x) ((x)->crl->lastUpdate)
#define X509_CRL_get_nextUpdate(x) ((x)->crl->nextUpdate)
#define X509_CRL_get_issuer(x) ((x)->crl->issuer)
#define X509_CRL_get_REVOKED(x) ((x)->crl->revoked)

#define X509_CINF_set_modified(c) ((c)->enc.modified = 1)
#define X509_CINF_get_issuer(c) (&(c)->issuer)
#define X509_CINF_get_extensions(c) ((c)->extensions)
#define X509_CINF_get_signature(c) ((c)->signature)

OPENSSL_EXPORT void X509_CRL_set_default_method(const X509_CRL_METHOD* meth);
OPENSSL_EXPORT X509_CRL_METHOD* X509_CRL_METHOD_new(int (*crl_init)(X509_CRL* crl), int (*crl_free)(X509_CRL* crl),
                                                    int (*crl_lookup)(X509_CRL* crl, X509_REVOKED** ret,
                                                                      ASN1_INTEGER* ser, X509_NAME* issuer),
                                                    int (*crl_verify)(X509_CRL* crl, EVP_PKEY* pk));
OPENSSL_EXPORT void X509_CRL_METHOD_free(X509_CRL_METHOD* m);

OPENSSL_EXPORT void X509_CRL_set_meth_data(X509_CRL* crl, void* dat);
OPENSSL_EXPORT void* X509_CRL_get_meth_data(X509_CRL* crl);

/* This one is only used so that a binary form can output, as in
 * i2d_X509_NAME(X509_get_X509_PUBKEY(x),&buf) */
#define X509_get_X509_PUBKEY(x) ((x)->cert_info->key)

OPENSSL_EXPORT const char* X509_verify_cert_error_string(long n);

#ifndef OPENSSL_NO_EVP
OPENSSL_EXPORT int X509_verify(X509* a, EVP_PKEY* r);

OPENSSL_EXPORT int X509_REQ_verify(X509_REQ* a, EVP_PKEY* r);
OPENSSL_EXPORT int X509_CRL_verify(X509_CRL* a, EVP_PKEY* r);
OPENSSL_EXPORT int NETSCAPE_SPKI_verify(NETSCAPE_SPKI* a, EVP_PKEY* r);

OPENSSL_EXPORT NETSCAPE_SPKI* NETSCAPE_SPKI_b64_decode(const char* str, int len);
OPENSSL_EXPORT char* NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI* x);
OPENSSL_EXPORT EVP_PKEY* NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI* x);
OPENSSL_EXPORT int NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI* x, EVP_PKEY* pkey);

OPENSSL_EXPORT int NETSCAPE_SPKI_print(BIO* out, NETSCAPE_SPKI* spki);

OPENSSL_EXPORT int X509_signature_dump(BIO* bp, const ASN1_STRING* sig, int indent);
OPENSSL_EXPORT int X509_signature_print(BIO* bp, const X509_ALGOR* alg, const ASN1_STRING* sig);

OPENSSL_EXPORT int X509_sign(X509* x, EVP_PKEY* pkey, const EVP_MD* md);
OPENSSL_EXPORT int X509_sign_ctx(X509* x, EVP_MD_CTX* ctx);
OPENSSL_EXPORT int X509_REQ_sign(X509_REQ* x, EVP_PKEY* pkey, const EVP_MD* md);
OPENSSL_EXPORT int X509_REQ_sign_ctx(X509_REQ* x, EVP_MD_CTX* ctx);
OPENSSL_EXPORT int X509_CRL_sign(X509_CRL* x, EVP_PKEY* pkey, const EVP_MD* md);
OPENSSL_EXPORT int X509_CRL_sign_ctx(X509_CRL* x, EVP_MD_CTX* ctx);
OPENSSL_EXPORT int NETSCAPE_SPKI_sign(NETSCAPE_SPKI* x, EVP_PKEY* pkey, const EVP_MD* md);

OPENSSL_EXPORT int X509_pubkey_digest(const X509* data, const EVP_MD* type, unsigned char* md, unsigned int* len);
OPENSSL_EXPORT int X509_digest(const X509* data, const EVP_MD* type, unsigned char* md, unsigned int* len);
OPENSSL_EXPORT int X509_CRL_digest(const X509_CRL* data, const EVP_MD* type, unsigned char* md, unsigned int* len);
OPENSSL_EXPORT int X509_REQ_digest(const X509_REQ* data, const EVP_MD* type, unsigned char* md, unsigned int* len);
OPENSSL_EXPORT int X509_NAME_digest(const X509_NAME* data, const EVP_MD* type, unsigned char* md, unsigned int* len);
#endif

/* X509_parse_from_buffer parses an X.509 structure from |buf| and returns a
 * fresh X509 or NULL on error. There must not be any trailing data in |buf|.
 * The returned structure (if any) holds a reference to |buf| rather than
 * copying parts of it as a normal |d2i_X509| call would do. */
OPENSSL_EXPORT X509* X509_parse_from_buffer(CRYPTO_BUFFER* buf);

#ifndef OPENSSL_NO_FP_API
OPENSSL_EXPORT X509* d2i_X509_fp(FILE* fp, X509** x509);
OPENSSL_EXPORT int i2d_X509_fp(FILE* fp, X509* x509);
OPENSSL_EXPORT X509_CRL* d2i_X509_CRL_fp(FILE* fp, X509_CRL** crl);
OPENSSL_EXPORT int i2d_X509_CRL_fp(FILE* fp, X509_CRL* crl);
OPENSSL_EXPORT X509_REQ* d2i_X509_REQ_fp(FILE* fp, X509_REQ** req);
OPENSSL_EXPORT int i2d_X509_REQ_fp(FILE* fp, X509_REQ* req);
OPENSSL_EXPORT RSA* d2i_RSAPrivateKey_fp(FILE* fp, RSA** rsa);
OPENSSL_EXPORT int i2d_RSAPrivateKey_fp(FILE* fp, RSA* rsa);
OPENSSL_EXPORT RSA* d2i_RSAPublicKey_fp(FILE* fp, RSA** rsa);
OPENSSL_EXPORT int i2d_RSAPublicKey_fp(FILE* fp, RSA* rsa);
OPENSSL_EXPORT RSA* d2i_RSA_PUBKEY_fp(FILE* fp, RSA** rsa);
OPENSSL_EXPORT int i2d_RSA_PUBKEY_fp(FILE* fp, RSA* rsa);
    #ifndef OPENSSL_NO_DSA
OPENSSL_EXPORT DSA* d2i_DSA_PUBKEY_fp(FILE* fp, DSA** dsa);
OPENSSL_EXPORT int i2d_DSA_PUBKEY_fp(FILE* fp, DSA* dsa);
OPENSSL_EXPORT DSA* d2i_DSAPrivateKey_fp(FILE* fp, DSA** dsa);
OPENSSL_EXPORT int i2d_DSAPrivateKey_fp(FILE* fp, DSA* dsa);
    #endif
OPENSSL_EXPORT EC_KEY* d2i_EC_PUBKEY_fp(FILE* fp, EC_KEY** eckey);
OPENSSL_EXPORT int i2d_EC_PUBKEY_fp(FILE* fp, EC_KEY* eckey);
OPENSSL_EXPORT EC_KEY* d2i_ECPrivateKey_fp(FILE* fp, EC_KEY** eckey);
OPENSSL_EXPORT int i2d_ECPrivateKey_fp(FILE* fp, EC_KEY* eckey);
OPENSSL_EXPORT X509_SIG* d2i_PKCS8_fp(FILE* fp, X509_SIG** p8);
OPENSSL_EXPORT int i2d_PKCS8_fp(FILE* fp, X509_SIG* p8);
OPENSSL_EXPORT PKCS8_PRIV_KEY_INFO* d2i_PKCS8_PRIV_KEY_INFO_fp(FILE* fp, PKCS8_PRIV_KEY_INFO** p8inf);
OPENSSL_EXPORT int i2d_PKCS8_PRIV_KEY_INFO_fp(FILE* fp, PKCS8_PRIV_KEY_INFO* p8inf);
OPENSSL_EXPORT int i2d_PKCS8PrivateKeyInfo_fp(FILE* fp, EVP_PKEY* key);
OPENSSL_EXPORT int i2d_PrivateKey_fp(FILE* fp, EVP_PKEY* pkey);
OPENSSL_EXPORT EVP_PKEY* d2i_PrivateKey_fp(FILE* fp, EVP_PKEY** a);
OPENSSL_EXPORT int i2d_PUBKEY_fp(FILE* fp, EVP_PKEY* pkey);
OPENSSL_EXPORT EVP_PKEY* d2i_PUBKEY_fp(FILE* fp, EVP_PKEY** a);
#endif

OPENSSL_EXPORT X509* d2i_X509_bio(BIO* bp, X509** x509);
OPENSSL_EXPORT int i2d_X509_bio(BIO* bp, X509* x509);
OPENSSL_EXPORT X509_CRL* d2i_X509_CRL_bio(BIO* bp, X509_CRL** crl);
OPENSSL_EXPORT int i2d_X509_CRL_bio(BIO* bp, X509_CRL* crl);
OPENSSL_EXPORT X509_REQ* d2i_X509_REQ_bio(BIO* bp, X509_REQ** req);
OPENSSL_EXPORT int i2d_X509_REQ_bio(BIO* bp, X509_REQ* req);
OPENSSL_EXPORT RSA* d2i_RSAPrivateKey_bio(BIO* bp, RSA** rsa);
OPENSSL_EXPORT int i2d_RSAPrivateKey_bio(BIO* bp, RSA* rsa);
OPENSSL_EXPORT RSA* d2i_RSAPublicKey_bio(BIO* bp, RSA** rsa);
OPENSSL_EXPORT int i2d_RSAPublicKey_bio(BIO* bp, RSA* rsa);
OPENSSL_EXPORT RSA* d2i_RSA_PUBKEY_bio(BIO* bp, RSA** rsa);
OPENSSL_EXPORT int i2d_RSA_PUBKEY_bio(BIO* bp, RSA* rsa);
#ifndef OPENSSL_NO_DSA
OPENSSL_EXPORT DSA* d2i_DSA_PUBKEY_bio(BIO* bp, DSA** dsa);
OPENSSL_EXPORT int i2d_DSA_PUBKEY_bio(BIO* bp, DSA* dsa);
OPENSSL_EXPORT DSA* d2i_DSAPrivateKey_bio(BIO* bp, DSA** dsa);
OPENSSL_EXPORT int i2d_DSAPrivateKey_bio(BIO* bp, DSA* dsa);
#endif
OPENSSL_EXPORT EC_KEY* d2i_EC_PUBKEY_bio(BIO* bp, EC_KEY** eckey);
OPENSSL_EXPORT int i2d_EC_PUBKEY_bio(BIO* bp, EC_KEY* eckey);
OPENSSL_EXPORT EC_KEY* d2i_ECPrivateKey_bio(BIO* bp, EC_KEY** eckey);
OPENSSL_EXPORT int i2d_ECPrivateKey_bio(BIO* bp, EC_KEY* eckey);
OPENSSL_EXPORT X509_SIG* d2i_PKCS8_bio(BIO* bp, X509_SIG** p8);
OPENSSL_EXPORT int i2d_PKCS8_bio(BIO* bp, X509_SIG* p8);
OPENSSL_EXPORT PKCS8_PRIV_KEY_INFO* d2i_PKCS8_PRIV_KEY_INFO_bio(BIO* bp, PKCS8_PRIV_KEY_INFO** p8inf);
OPENSSL_EXPORT int i2d_PKCS8_PRIV_KEY_INFO_bio(BIO* bp, PKCS8_PRIV_KEY_INFO* p8inf);
OPENSSL_EXPORT int i2d_PKCS8PrivateKeyInfo_bio(BIO* bp, EVP_PKEY* key);
OPENSSL_EXPORT int i2d_PrivateKey_bio(BIO* bp, EVP_PKEY* pkey);
OPENSSL_EXPORT EVP_PKEY* d2i_PrivateKey_bio(BIO* bp, EVP_PKEY** a);
OPENSSL_EXPORT int i2d_PUBKEY_bio(BIO* bp, EVP_PKEY* pkey);
OPENSSL_EXPORT EVP_PKEY* d2i_PUBKEY_bio(BIO* bp, EVP_PKEY** a);
OPENSSL_EXPORT DH* d2i_DHparams_bio(BIO* bp, DH** dh);
OPENSSL_EXPORT int i2d_DHparams_bio(BIO* bp, const DH* dh);

OPENSSL_EXPORT X509* X509_dup(X509* x509);
OPENSSL_EXPORT X509_ATTRIBUTE* X509_ATTRIBUTE_dup(X509_ATTRIBUTE* xa);
OPENSSL_EXPORT X509_EXTENSION* X509_EXTENSION_dup(X509_EXTENSION* ex);
OPENSSL_EXPORT X509_CRL* X509_CRL_dup(X509_CRL* crl);
OPENSSL_EXPORT X509_REVOKED* X509_REVOKED_dup(X509_REVOKED* rev);
OPENSSL_EXPORT X509_REQ* X509_REQ_dup(X509_REQ* req);
OPENSSL_EXPORT X509_ALGOR* X509_ALGOR_dup(X509_ALGOR* xn);
OPENSSL_EXPORT int X509_ALGOR_set0(X509_ALGOR* alg, const ASN1_OBJECT* aobj, int ptype, void* pval);
OPENSSL_EXPORT void X509_ALGOR_get0(const ASN1_OBJECT** paobj, int* pptype, const void** ppval,
                                    const X509_ALGOR* algor);
OPENSSL_EXPORT void X509_ALGOR_set_md(X509_ALGOR* alg, const EVP_MD* md);
OPENSSL_EXPORT int X509_ALGOR_cmp(const X509_ALGOR* a, const X509_ALGOR* b);

OPENSSL_EXPORT X509_NAME* X509_NAME_dup(X509_NAME* xn);
OPENSSL_EXPORT X509_NAME_ENTRY* X509_NAME_ENTRY_dup(X509_NAME_ENTRY* ne);
OPENSSL_EXPORT int X509_NAME_ENTRY_set(const X509_NAME_ENTRY* ne);

OPENSSL_EXPORT int X509_NAME_get0_der(X509_NAME* nm, const unsigned char** pder, size_t* pderlen);

OPENSSL_EXPORT int X509_cmp_time(const ASN1_TIME* s, time_t* t);
OPENSSL_EXPORT int X509_cmp_current_time(const ASN1_TIME* s);
OPENSSL_EXPORT ASN1_TIME* X509_time_adj(ASN1_TIME* s, long adj, time_t* t);
OPENSSL_EXPORT ASN1_TIME* X509_time_adj_ex(ASN1_TIME* s, int offset_day, long offset_sec, time_t* t);
OPENSSL_EXPORT ASN1_TIME* X509_gmtime_adj(ASN1_TIME* s, long adj);

OPENSSL_EXPORT const char* X509_get_default_cert_area(void);
OPENSSL_EXPORT const char* X509_get_default_cert_dir(void);
OPENSSL_EXPORT const char* X509_get_default_cert_file(void);
OPENSSL_EXPORT const char* X509_get_default_cert_dir_env(void);
OPENSSL_EXPORT const char* X509_get_default_cert_file_env(void);
OPENSSL_EXPORT const char* X509_get_default_private_dir(void);

OPENSSL_EXPORT X509_REQ* X509_to_X509_REQ(X509* x, EVP_PKEY* pkey, const EVP_MD* md);
OPENSSL_EXPORT X509* X509_REQ_to_X509(X509_REQ* r, int days, EVP_PKEY* pkey);

DECLARE_ASN1_ENCODE_FUNCTIONS(X509_ALGORS, X509_ALGORS, X509_ALGORS)
DECLARE_ASN1_FUNCTIONS(X509_VAL)

DECLARE_ASN1_FUNCTIONS(X509_PUBKEY)

OPENSSL_EXPORT int X509_PUBKEY_set(X509_PUBKEY** x, EVP_PKEY* pkey);
OPENSSL_EXPORT EVP_PKEY* X509_PUBKEY_get(X509_PUBKEY* key);
OPENSSL_EXPORT int i2d_PUBKEY(const EVP_PKEY* a, unsigned char** pp);
OPENSSL_EXPORT EVP_PKEY* d2i_PUBKEY(EVP_PKEY** a, const unsigned char** pp, long length);
OPENSSL_EXPORT int i2d_RSA_PUBKEY(const RSA* a, unsigned char** pp);
OPENSSL_EXPORT RSA* d2i_RSA_PUBKEY(RSA** a, const unsigned char** pp, long length);
#ifndef OPENSSL_NO_DSA
OPENSSL_EXPORT int i2d_DSA_PUBKEY(const DSA* a, unsigned char** pp);
OPENSSL_EXPORT DSA* d2i_DSA_PUBKEY(DSA** a, const unsigned char** pp, long length);
#endif
OPENSSL_EXPORT int i2d_EC_PUBKEY(const EC_KEY* a, unsigned char** pp);
OPENSSL_EXPORT EC_KEY* d2i_EC_PUBKEY(EC_KEY** a, const unsigned char** pp, long length);

DECLARE_ASN1_FUNCTIONS(X509_SIG)
DECLARE_ASN1_FUNCTIONS(X509_REQ_INFO)
DECLARE_ASN1_FUNCTIONS(X509_REQ)

DECLARE_ASN1_FUNCTIONS(X509_ATTRIBUTE)
OPENSSL_EXPORT X509_ATTRIBUTE* X509_ATTRIBUTE_create(int nid, int atrtype, void* value);

DECLARE_ASN1_FUNCTIONS(X509_EXTENSION)
DECLARE_ASN1_ENCODE_FUNCTIONS(X509_EXTENSIONS, X509_EXTENSIONS, X509_EXTENSIONS)

DECLARE_ASN1_FUNCTIONS(X509_NAME_ENTRY)

DECLARE_ASN1_FUNCTIONS(X509_NAME)

OPENSSL_EXPORT int X509_NAME_set(X509_NAME** xn, X509_NAME* name);

DECLARE_ASN1_FUNCTIONS(X509_CINF)

DECLARE_ASN1_FUNCTIONS(X509)
DECLARE_ASN1_FUNCTIONS(X509_CERT_AUX)

/* X509_up_ref adds one to the reference count of |x| and returns one. */
OPENSSL_EXPORT int X509_up_ref(X509* x);

OPENSSL_EXPORT int X509_get_ex_new_index(long argl, void* argp, CRYPTO_EX_unused* unused, CRYPTO_EX_dup* dup_unused,
                                         CRYPTO_EX_free* free_func);
OPENSSL_EXPORT int X509_set_ex_data(X509* r, int idx, void* arg);
OPENSSL_EXPORT void* X509_get_ex_data(X509* r, int idx);
OPENSSL_EXPORT int i2d_X509_AUX(X509* a, unsigned char** pp);
OPENSSL_EXPORT X509* d2i_X509_AUX(X509** a, const unsigned char** pp, long length);

OPENSSL_EXPORT int i2d_re_X509_tbs(X509* x, unsigned char** pp);

OPENSSL_EXPORT void X509_get0_signature(const ASN1_BIT_STRING** psig, const X509_ALGOR** palg, const X509* x);
OPENSSL_EXPORT int X509_get_signature_nid(const X509* x);

OPENSSL_EXPORT int X509_alias_set1(X509* x, unsigned char* name, int len);
OPENSSL_EXPORT int X509_keyid_set1(X509* x, unsigned char* id, int len);
OPENSSL_EXPORT unsigned char* X509_alias_get0(X509* x, int* len);
OPENSSL_EXPORT unsigned char* X509_keyid_get0(X509* x, int* len);
OPENSSL_EXPORT int (*X509_TRUST_set_default(int (*trust)(int, X509*, int)))(int, X509*, int);
OPENSSL_EXPORT int X509_TRUST_set(int* t, int trust);
OPENSSL_EXPORT int X509_add1_trust_object(X509* x, ASN1_OBJECT* obj);
OPENSSL_EXPORT int X509_add1_reject_object(X509* x, ASN1_OBJECT* obj);
OPENSSL_EXPORT void X509_trust_clear(X509* x);
OPENSSL_EXPORT void X509_reject_clear(X509* x);

DECLARE_ASN1_FUNCTIONS(X509_REVOKED)
DECLARE_ASN1_FUNCTIONS(X509_CRL_INFO)
DECLARE_ASN1_FUNCTIONS(X509_CRL)

OPENSSL_EXPORT int X509_CRL_add0_revoked(X509_CRL* crl, X509_REVOKED* rev);
OPENSSL_EXPORT int X509_CRL_get0_by_serial(X509_CRL* crl, X509_REVOKED** ret, ASN1_INTEGER* serial);
OPENSSL_EXPORT int X509_CRL_get0_by_cert(X509_CRL* crl, X509_REVOKED** ret, X509* x);

OPENSSL_EXPORT X509_PKEY* X509_PKEY_new(void);
OPENSSL_EXPORT void X509_PKEY_free(X509_PKEY* a);

DECLARE_ASN1_FUNCTIONS(NETSCAPE_SPKI)
DECLARE_ASN1_FUNCTIONS(NETSCAPE_SPKAC)

#ifndef OPENSSL_NO_EVP
OPENSSL_EXPORT X509_INFO* X509_INFO_new(void);
OPENSSL_EXPORT void X509_INFO_free(X509_INFO* a);
OPENSSL_EXPORT char* X509_NAME_oneline(X509_NAME* a, char* buf, int size);

OPENSSL_EXPORT int ASN1_digest(i2d_of_void* i2d, const EVP_MD* type, char* data, unsigned char* md, unsigned int* len);

OPENSSL_EXPORT int ASN1_item_digest(const ASN1_ITEM* it, const EVP_MD* type, void* data, unsigned char* md,
                                    unsigned int* len);

OPENSSL_EXPORT int ASN1_item_verify(const ASN1_ITEM* it, X509_ALGOR* algor1, ASN1_BIT_STRING* signature, void* data,
                                    EVP_PKEY* pkey);

OPENSSL_EXPORT int ASN1_item_sign(const ASN1_ITEM* it, X509_ALGOR* algor1, X509_ALGOR* algor2,
                                  ASN1_BIT_STRING* signature, void* data, EVP_PKEY* pkey, const EVP_MD* type);
OPENSSL_EXPORT int ASN1_item_sign_ctx(const ASN1_ITEM* it, X509_ALGOR* algor1, X509_ALGOR* algor2,
                                      ASN1_BIT_STRING* signature, void* asn, EVP_MD_CTX* ctx);
#endif

OPENSSL_EXPORT int X509_set_version(X509* x, long version);
OPENSSL_EXPORT int X509_set_serialNumber(X509* x, ASN1_INTEGER* serial);
OPENSSL_EXPORT ASN1_INTEGER* X509_get_serialNumber(X509* x);
OPENSSL_EXPORT int X509_set_issuer_name(X509* x, X509_NAME* name);
OPENSSL_EXPORT X509_NAME* X509_get_issuer_name(X509* a);
OPENSSL_EXPORT int X509_set_subject_name(X509* x, X509_NAME* name);
OPENSSL_EXPORT X509_NAME* X509_get_subject_name(X509* a);
OPENSSL_EXPORT int X509_set_notBefore(X509* x, const ASN1_TIME* tm);
OPENSSL_EXPORT const ASN1_TIME* X509_get0_notBefore(const X509* x);
OPENSSL_EXPORT int X509_set_notAfter(X509* x, const ASN1_TIME* tm);
OPENSSL_EXPORT const ASN1_TIME* X509_get0_notAfter(const X509* x);
OPENSSL_EXPORT int X509_set_pubkey(X509* x, EVP_PKEY* pkey);
OPENSSL_EXPORT EVP_PKEY* X509_get_pubkey(X509* x);
OPENSSL_EXPORT ASN1_BIT_STRING* X509_get0_pubkey_bitstr(const X509* x);
OPENSSL_EXPORT STACK_OF(X509_EXTENSION) * X509_get0_extensions(const X509* x);
OPENSSL_EXPORT const X509_ALGOR* X509_get0_tbs_sigalg(const X509* x);

OPENSSL_EXPORT int X509_REQ_set_version(X509_REQ* x, long version);
OPENSSL_EXPORT int X509_REQ_set_subject_name(X509_REQ* req, X509_NAME* name);
OPENSSL_EXPORT void X509_REQ_get0_signature(const X509_REQ* req, const ASN1_BIT_STRING** psig, const X509_ALGOR** palg);
OPENSSL_EXPORT int X509_REQ_get_signature_nid(const X509_REQ* req);
OPENSSL_EXPORT int i2d_re_X509_REQ_tbs(X509_REQ* req, unsigned char** pp);
OPENSSL_EXPORT int X509_REQ_set_pubkey(X509_REQ* x, EVP_PKEY* pkey);
OPENSSL_EXPORT EVP_PKEY* X509_REQ_get_pubkey(X509_REQ* req);
OPENSSL_EXPORT int X509_REQ_extension_nid(int nid);
OPENSSL_EXPORT const int* X509_REQ_get_extension_nids(void);
OPENSSL_EXPORT void X509_REQ_set_extension_nids(const int* nids);
OPENSSL_EXPORT STACK_OF(X509_EXTENSION) * X509_REQ_get_extensions(X509_REQ* req);
OPENSSL_EXPORT int X509_REQ_add_extensions_nid(X509_REQ* req, STACK_OF(X509_EXTENSION) * exts, int nid);
OPENSSL_EXPORT int X509_REQ_add_extensions(X509_REQ* req, STACK_OF(X509_EXTENSION) * exts);
OPENSSL_EXPORT int X509_REQ_get_attr_count(const X509_REQ* req);
OPENSSL_EXPORT int X509_REQ_get_attr_by_NID(const X509_REQ* req, int nid, int lastpos);
OPENSSL_EXPORT int X509_REQ_get_attr_by_OBJ(const X509_REQ* req, ASN1_OBJECT* obj, int lastpos);
OPENSSL_EXPORT X509_ATTRIBUTE* X509_REQ_get_attr(const X509_REQ* req, int loc);
OPENSSL_EXPORT X509_ATTRIBUTE* X509_REQ_delete_attr(X509_REQ* req, int loc);
OPENSSL_EXPORT int X509_REQ_add1_attr(X509_REQ* req, X509_ATTRIBUTE* attr);
OPENSSL_EXPORT int X509_REQ_add1_attr_by_OBJ(X509_REQ* req, const ASN1_OBJECT* obj, int type,
                                             const unsigned char* bytes, int len);
OPENSSL_EXPORT int X509_REQ_add1_attr_by_NID(X509_REQ* req, int nid, int type, const unsigned char* bytes, int len);
OPENSSL_EXPORT int X509_REQ_add1_attr_by_txt(X509_REQ* req, const char* attrname, int type, const unsigned char* bytes,
                                             int len);

OPENSSL_EXPORT int X509_CRL_set_version(X509_CRL* x, long version);
OPENSSL_EXPORT int X509_CRL_set_issuer_name(X509_CRL* x, X509_NAME* name);
OPENSSL_EXPORT int X509_CRL_set_lastUpdate(X509_CRL* x, const ASN1_TIME* tm);
OPENSSL_EXPORT int X509_CRL_set_nextUpdate(X509_CRL* x, const ASN1_TIME* tm);
OPENSSL_EXPORT int X509_CRL_sort(X509_CRL* crl);
OPENSSL_EXPORT int X509_CRL_up_ref(X509_CRL* crl);

OPENSSL_EXPORT void X509_CRL_get0_signature(const X509_CRL* crl, const ASN1_BIT_STRING** psig, const X509_ALGOR** palg);
OPENSSL_EXPORT int X509_CRL_get_signature_nid(const X509_CRL* crl);
OPENSSL_EXPORT int i2d_re_X509_CRL_tbs(X509_CRL* req, unsigned char** pp);

OPENSSL_EXPORT const ASN1_INTEGER* X509_REVOKED_get0_serialNumber(const X509_REVOKED* x);
OPENSSL_EXPORT int X509_REVOKED_set_serialNumber(X509_REVOKED* x, ASN1_INTEGER* serial);
OPENSSL_EXPORT const ASN1_TIME* X509_REVOKED_get0_revocationDate(const X509_REVOKED* x);
OPENSSL_EXPORT int X509_REVOKED_set_revocationDate(X509_REVOKED* r, ASN1_TIME* tm);

OPENSSL_EXPORT X509_CRL* X509_CRL_diff(X509_CRL* base, X509_CRL* newer, EVP_PKEY* skey, const EVP_MD* md,
                                       unsigned int flags);

OPENSSL_EXPORT int X509_REQ_check_private_key(X509_REQ* x509, EVP_PKEY* pkey);

OPENSSL_EXPORT int X509_check_private_key(X509* x509, const EVP_PKEY* pkey);
OPENSSL_EXPORT int X509_chain_check_suiteb(int* perror_depth, X509* x, STACK_OF(X509) * chain, unsigned long flags);
OPENSSL_EXPORT int X509_CRL_check_suiteb(X509_CRL* crl, EVP_PKEY* pk, unsigned long flags);
OPENSSL_EXPORT STACK_OF(X509) * X509_chain_up_ref(STACK_OF(X509) * chain);

OPENSSL_EXPORT int X509_issuer_and_serial_cmp(const X509* a, const X509* b);
OPENSSL_EXPORT unsigned long X509_issuer_and_serial_hash(X509* a);

OPENSSL_EXPORT int X509_issuer_name_cmp(const X509* a, const X509* b);
OPENSSL_EXPORT unsigned long X509_issuer_name_hash(X509* a);

OPENSSL_EXPORT int X509_subject_name_cmp(const X509* a, const X509* b);
OPENSSL_EXPORT unsigned long X509_subject_name_hash(X509* x);

OPENSSL_EXPORT unsigned long X509_issuer_name_hash_old(X509* a);
OPENSSL_EXPORT unsigned long X509_subject_name_hash_old(X509* x);

OPENSSL_EXPORT int X509_cmp(const X509* a, const X509* b);
OPENSSL_EXPORT int X509_NAME_cmp(const X509_NAME* a, const X509_NAME* b);
OPENSSL_EXPORT unsigned long X509_NAME_hash(X509_NAME* x);
OPENSSL_EXPORT unsigned long X509_NAME_hash_old(X509_NAME* x);

OPENSSL_EXPORT int X509_CRL_cmp(const X509_CRL* a, const X509_CRL* b);
OPENSSL_EXPORT int X509_CRL_match(const X509_CRL* a, const X509_CRL* b);
#ifndef OPENSSL_NO_FP_API
OPENSSL_EXPORT int X509_print_ex_fp(FILE* bp, X509* x, unsigned long nmflag, unsigned long cflag);
OPENSSL_EXPORT int X509_print_fp(FILE* bp, X509* x);
OPENSSL_EXPORT int X509_CRL_print_fp(FILE* bp, X509_CRL* x);
OPENSSL_EXPORT int X509_REQ_print_fp(FILE* bp, X509_REQ* req);
OPENSSL_EXPORT int X509_NAME_print_ex_fp(FILE* fp, X509_NAME* nm, int indent, unsigned long flags);
#endif

OPENSSL_EXPORT int X509_NAME_print(BIO* bp, X509_NAME* name, int obase);
OPENSSL_EXPORT int X509_NAME_print_ex(BIO* out, X509_NAME* nm, int indent, unsigned long flags);
OPENSSL_EXPORT int X509_print_ex(BIO* bp, X509* x, unsigned long nmflag, unsigned long cflag);
OPENSSL_EXPORT int X509_print(BIO* bp, X509* x);
OPENSSL_EXPORT int X509_ocspid_print(BIO* bp, X509* x);
OPENSSL_EXPORT int X509_CERT_AUX_print(BIO* bp, X509_CERT_AUX* x, int indent);
OPENSSL_EXPORT int X509_CRL_print(BIO* bp, X509_CRL* x);
OPENSSL_EXPORT int X509_REQ_print_ex(BIO* bp, X509_REQ* x, unsigned long nmflag, unsigned long cflag);
OPENSSL_EXPORT int X509_REQ_print(BIO* bp, X509_REQ* req);

OPENSSL_EXPORT int X509_NAME_entry_count(X509_NAME* name);
OPENSSL_EXPORT int X509_NAME_get_text_by_NID(X509_NAME* name, int nid, char* buf, int len);
OPENSSL_EXPORT int X509_NAME_get_text_by_OBJ(X509_NAME* name, const ASN1_OBJECT* obj, char* buf, int len);

/* NOTE: you should be passsing -1, not 0 as lastpos.  The functions that use
 * lastpos, search after that position on. */
OPENSSL_EXPORT int X509_NAME_get_index_by_NID(X509_NAME* name, int nid, int lastpos);
OPENSSL_EXPORT int X509_NAME_get_index_by_OBJ(X509_NAME* name, const ASN1_OBJECT* obj, int lastpos);
OPENSSL_EXPORT X509_NAME_ENTRY* X509_NAME_get_entry(X509_NAME* name, int loc);
OPENSSL_EXPORT X509_NAME_ENTRY* X509_NAME_delete_entry(X509_NAME* name, int loc);
OPENSSL_EXPORT int X509_NAME_add_entry(X509_NAME* name, X509_NAME_ENTRY* ne, int loc, int set);
OPENSSL_EXPORT int X509_NAME_add_entry_by_OBJ(X509_NAME* name, ASN1_OBJECT* obj, int type, unsigned char* bytes,
                                              int len, int loc, int set);
OPENSSL_EXPORT int X509_NAME_add_entry_by_NID(X509_NAME* name, int nid, int type, unsigned char* bytes, int len,
                                              int loc, int set);
OPENSSL_EXPORT X509_NAME_ENTRY* X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY** ne, const char* field, int type,
                                                              const unsigned char* bytes, int len);
OPENSSL_EXPORT X509_NAME_ENTRY* X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY** ne, int nid, int type,
                                                              unsigned char* bytes, int len);
OPENSSL_EXPORT int X509_NAME_add_entry_by_txt(X509_NAME* name, const char* field, int type, const unsigned char* bytes,
                                              int len, int loc, int set);
OPENSSL_EXPORT X509_NAME_ENTRY* X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY** ne, const ASN1_OBJECT* obj, int type,
                                                              const unsigned char* bytes, int len);
OPENSSL_EXPORT int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY* ne, const ASN1_OBJECT* obj);
OPENSSL_EXPORT int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY* ne, int type, const unsigned char* bytes, int len);
OPENSSL_EXPORT ASN1_OBJECT* X509_NAME_ENTRY_get_object(X509_NAME_ENTRY* ne);
OPENSSL_EXPORT ASN1_STRING* X509_NAME_ENTRY_get_data(X509_NAME_ENTRY* ne);

OPENSSL_EXPORT int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) * x);
OPENSSL_EXPORT int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) * x, int nid, int lastpos);
OPENSSL_EXPORT int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) * x, const ASN1_OBJECT* obj, int lastpos);
OPENSSL_EXPORT int X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) * x, int crit, int lastpos);
OPENSSL_EXPORT X509_EXTENSION* X509v3_get_ext(const STACK_OF(X509_EXTENSION) * x, int loc);
OPENSSL_EXPORT X509_EXTENSION* X509v3_delete_ext(STACK_OF(X509_EXTENSION) * x, int loc);
OPENSSL_EXPORT STACK_OF(X509_EXTENSION) * X509v3_add_ext(STACK_OF(X509_EXTENSION) * *x, X509_EXTENSION* ex, int loc);

OPENSSL_EXPORT int X509_get_ext_count(X509* x);
OPENSSL_EXPORT int X509_get_ext_by_NID(X509* x, int nid, int lastpos);
OPENSSL_EXPORT int X509_get_ext_by_OBJ(X509* x, ASN1_OBJECT* obj, int lastpos);
OPENSSL_EXPORT int X509_get_ext_by_critical(X509* x, int crit, int lastpos);
OPENSSL_EXPORT X509_EXTENSION* X509_get_ext(X509* x, int loc);
OPENSSL_EXPORT X509_EXTENSION* X509_delete_ext(X509* x, int loc);
OPENSSL_EXPORT int X509_add_ext(X509* x, X509_EXTENSION* ex, int loc);
OPENSSL_EXPORT void* X509_get_ext_d2i(X509* x, int nid, int* crit, int* idx);
OPENSSL_EXPORT int X509_add1_ext_i2d(X509* x, int nid, void* value, int crit, unsigned long flags);

OPENSSL_EXPORT int X509_CRL_get_ext_count(X509_CRL* x);
OPENSSL_EXPORT int X509_CRL_get_ext_by_NID(X509_CRL* x, int nid, int lastpos);
OPENSSL_EXPORT int X509_CRL_get_ext_by_OBJ(X509_CRL* x, ASN1_OBJECT* obj, int lastpos);
OPENSSL_EXPORT int X509_CRL_get_ext_by_critical(X509_CRL* x, int crit, int lastpos);
OPENSSL_EXPORT X509_EXTENSION* X509_CRL_get_ext(X509_CRL* x, int loc);
OPENSSL_EXPORT X509_EXTENSION* X509_CRL_delete_ext(X509_CRL* x, int loc);
OPENSSL_EXPORT int X509_CRL_add_ext(X509_CRL* x, X509_EXTENSION* ex, int loc);
OPENSSL_EXPORT void* X509_CRL_get_ext_d2i(X509_CRL* x, int nid, int* crit, int* idx);
OPENSSL_EXPORT int X509_CRL_add1_ext_i2d(X509_CRL* x, int nid, void* value, int crit, unsigned long flags);

OPENSSL_EXPORT int X509_REVOKED_get_ext_count(X509_REVOKED* x);
OPENSSL_EXPORT int X509_REVOKED_get_ext_by_NID(X509_REVOKED* x, int nid, int lastpos);
OPENSSL_EXPORT int X509_REVOKED_get_ext_by_OBJ(X509_REVOKED* x, ASN1_OBJECT* obj, int lastpos);
OPENSSL_EXPORT int X509_REVOKED_get_ext_by_critical(X509_REVOKED* x, int crit, int lastpos);
OPENSSL_EXPORT X509_EXTENSION* X509_REVOKED_get_ext(X509_REVOKED* x, int loc);
OPENSSL_EXPORT X509_EXTENSION* X509_REVOKED_delete_ext(X509_REVOKED* x, int loc);
OPENSSL_EXPORT int X509_REVOKED_add_ext(X509_REVOKED* x, X509_EXTENSION* ex, int loc);
OPENSSL_EXPORT void* X509_REVOKED_get_ext_d2i(X509_REVOKED* x, int nid, int* crit, int* idx);
OPENSSL_EXPORT int X509_REVOKED_add1_ext_i2d(X509_REVOKED* x, int nid, void* value, int crit, unsigned long flags);

OPENSSL_EXPORT X509_EXTENSION* X509_EXTENSION_create_by_NID(X509_EXTENSION** ex, int nid, int crit,
                                                            ASN1_OCTET_STRING* data);
OPENSSL_EXPORT X509_EXTENSION* X509_EXTENSION_create_by_OBJ(X509_EXTENSION** ex, const ASN1_OBJECT* obj, int crit,
                                                            ASN1_OCTET_STRING* data);
OPENSSL_EXPORT int X509_EXTENSION_set_object(X509_EXTENSION* ex, const ASN1_OBJECT* obj);
OPENSSL_EXPORT int X509_EXTENSION_set_critical(X509_EXTENSION* ex, int crit);
OPENSSL_EXPORT int X509_EXTENSION_set_data(X509_EXTENSION* ex, ASN1_OCTET_STRING* data);
OPENSSL_EXPORT ASN1_OBJECT* X509_EXTENSION_get_object(X509_EXTENSION* ex);
OPENSSL_EXPORT ASN1_OCTET_STRING* X509_EXTENSION_get_data(X509_EXTENSION* ne);
OPENSSL_EXPORT int X509_EXTENSION_get_critical(X509_EXTENSION* ex);

OPENSSL_EXPORT int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) * x);
OPENSSL_EXPORT int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) * x, int nid, int lastpos);
OPENSSL_EXPORT int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) * sk, const ASN1_OBJECT* obj, int lastpos);
OPENSSL_EXPORT X509_ATTRIBUTE* X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) * x, int loc);
OPENSSL_EXPORT X509_ATTRIBUTE* X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) * x, int loc);
OPENSSL_EXPORT STACK_OF(X509_ATTRIBUTE) * X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) * *x, X509_ATTRIBUTE* attr);
OPENSSL_EXPORT STACK_OF(X509_ATTRIBUTE) * X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) * *x, const ASN1_OBJECT* obj,
                                                                  int type, const unsigned char* bytes, int len);
OPENSSL_EXPORT STACK_OF(X509_ATTRIBUTE) *
    X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) * *x, int nid, int type, const unsigned char* bytes, int len);
OPENSSL_EXPORT STACK_OF(X509_ATTRIBUTE) * X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) * *x, const char* attrname,
                                                                  int type, const unsigned char* bytes, int len);
OPENSSL_EXPORT void* X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) * x, ASN1_OBJECT* obj, int lastpos, int type);
OPENSSL_EXPORT X509_ATTRIBUTE* X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE** attr, int nid, int atrtype,
                                                            const void* data, int len);
OPENSSL_EXPORT X509_ATTRIBUTE* X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE** attr, const ASN1_OBJECT* obj, int atrtype,
                                                            const void* data, int len);
OPENSSL_EXPORT X509_ATTRIBUTE* X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE** attr, const char* atrname, int type,
                                                            const unsigned char* bytes, int len);
OPENSSL_EXPORT int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE* attr, const ASN1_OBJECT* obj);
OPENSSL_EXPORT int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE* attr, int attrtype, const void* data, int len);
OPENSSL_EXPORT void* X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE* attr, int idx, int atrtype, void* data);
OPENSSL_EXPORT int X509_ATTRIBUTE_count(X509_ATTRIBUTE* attr);
OPENSSL_EXPORT ASN1_OBJECT* X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE* attr);
OPENSSL_EXPORT ASN1_TYPE* X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE* attr, int idx);

OPENSSL_EXPORT int X509_verify_cert(X509_STORE_CTX* ctx);

/* lookup a cert from a X509 STACK */
OPENSSL_EXPORT X509* X509_find_by_issuer_and_serial(STACK_OF(X509) * sk, X509_NAME* name, ASN1_INTEGER* serial);
OPENSSL_EXPORT X509* X509_find_by_subject(STACK_OF(X509) * sk, X509_NAME* name);

/* PKCS#8 utilities */

DECLARE_ASN1_FUNCTIONS(PKCS8_PRIV_KEY_INFO)

OPENSSL_EXPORT EVP_PKEY* EVP_PKCS82PKEY(PKCS8_PRIV_KEY_INFO* p8);
OPENSSL_EXPORT PKCS8_PRIV_KEY_INFO* EVP_PKEY2PKCS8(EVP_PKEY* pkey);
OPENSSL_EXPORT PKCS8_PRIV_KEY_INFO* EVP_PKEY2PKCS8_broken(EVP_PKEY* pkey, int broken);
OPENSSL_EXPORT PKCS8_PRIV_KEY_INFO* PKCS8_set_broken(PKCS8_PRIV_KEY_INFO* p8, int broken);

OPENSSL_EXPORT int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO* priv, ASN1_OBJECT* aobj, int version, int ptype, void* pval,
                                   unsigned char* penc, int penclen);
OPENSSL_EXPORT int PKCS8_pkey_get0(ASN1_OBJECT** ppkalg, const unsigned char** pk, int* ppklen, X509_ALGOR** pa,
                                   PKCS8_PRIV_KEY_INFO* p8);

OPENSSL_EXPORT int X509_PUBKEY_set0_param(X509_PUBKEY* pub, const ASN1_OBJECT* aobj, int ptype, void* pval,
                                          unsigned char* penc, int penclen);
OPENSSL_EXPORT int X509_PUBKEY_get0_param(ASN1_OBJECT** ppkalg, const unsigned char** pk, int* ppklen, X509_ALGOR** pa,
                                          X509_PUBKEY* pub);

OPENSSL_EXPORT int X509_check_trust(X509* x, int id, int flags);
OPENSSL_EXPORT int X509_TRUST_get_count(void);
OPENSSL_EXPORT X509_TRUST* X509_TRUST_get0(int idx);
OPENSSL_EXPORT int X509_TRUST_get_by_id(int id);
OPENSSL_EXPORT int X509_TRUST_add(int id, int flags, int (*ck)(X509_TRUST*, X509*, int), char* name, int arg1,
                                  void* arg2);
OPENSSL_EXPORT void X509_TRUST_cleanup(void);
OPENSSL_EXPORT int X509_TRUST_get_flags(X509_TRUST* xp);
OPENSSL_EXPORT char* X509_TRUST_get0_name(X509_TRUST* xp);
OPENSSL_EXPORT int X509_TRUST_get_trust(X509_TRUST* xp);

typedef struct rsa_pss_params_st {
    X509_ALGOR* hashAlgorithm;
    X509_ALGOR* maskGenAlgorithm;
    ASN1_INTEGER* saltLength;
    ASN1_INTEGER* trailerField;
} RSA_PSS_PARAMS;

DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS)

#ifdef __cplusplus
}
#endif

#if !defined(BORINGSSL_NO_CXX)
extern "C++" {

BSSL_NAMESPACE_BEGIN

BORINGSSL_MAKE_DELETER(NETSCAPE_SPKI, NETSCAPE_SPKI_free)
BORINGSSL_MAKE_DELETER(RSA_PSS_PARAMS, RSA_PSS_PARAMS_free)
BORINGSSL_MAKE_DELETER(X509, X509_free)
BORINGSSL_MAKE_UP_REF(X509, X509_up_ref)
BORINGSSL_MAKE_DELETER(X509_ALGOR, X509_ALGOR_free)
BORINGSSL_MAKE_DELETER(X509_CRL, X509_CRL_free)
BORINGSSL_MAKE_UP_REF(X509_CRL, X509_CRL_up_ref)
BORINGSSL_MAKE_DELETER(X509_CRL_METHOD, X509_CRL_METHOD_free)
BORINGSSL_MAKE_DELETER(X509_EXTENSION, X509_EXTENSION_free)
BORINGSSL_MAKE_DELETER(X509_INFO, X509_INFO_free)
BORINGSSL_MAKE_DELETER(X509_LOOKUP, X509_LOOKUP_free)
BORINGSSL_MAKE_DELETER(X509_NAME, X509_NAME_free)
BORINGSSL_MAKE_DELETER(X509_NAME_ENTRY, X509_NAME_ENTRY_free)
BORINGSSL_MAKE_DELETER(X509_PKEY, X509_PKEY_free)
BORINGSSL_MAKE_DELETER(X509_POLICY_TREE, X509_policy_tree_free)
BORINGSSL_MAKE_DELETER(X509_PUBKEY, X509_PUBKEY_free)
BORINGSSL_MAKE_DELETER(X509_REQ, X509_REQ_free)
BORINGSSL_MAKE_DELETER(X509_REVOKED, X509_REVOKED_free)
BORINGSSL_MAKE_DELETER(X509_SIG, X509_SIG_free)
BORINGSSL_MAKE_DELETER(X509_STORE, X509_STORE_free)
BORINGSSL_MAKE_DELETER(X509_STORE_CTX, X509_STORE_CTX_free)
BORINGSSL_MAKE_DELETER(X509_VERIFY_PARAM, X509_VERIFY_PARAM_free)

using ScopedX509_STORE_CTX =
    internal::StackAllocated<X509_STORE_CTX, void, X509_STORE_CTX_zero, X509_STORE_CTX_cleanup>;

BSSL_NAMESPACE_END

} /* extern C++ */
#endif /* !BORINGSSL_NO_CXX */

#define X509_R_AKID_MISMATCH 100
#define X509_R_BAD_PKCS7_VERSION 101
#define X509_R_BAD_X509_FILETYPE 102
#define X509_R_BASE64_DECODE_ERROR 103
#define X509_R_CANT_CHECK_DH_KEY 104
#define X509_R_CERT_ALREADY_IN_HASH_TABLE 105
#define X509_R_CRL_ALREADY_DELTA 106
#define X509_R_CRL_VERIFY_FAILURE 107
#define X509_R_IDP_MISMATCH 108
#define X509_R_INVALID_BIT_STRING_BITS_LEFT 109
#define X509_R_INVALID_DIRECTORY 110
#define X509_R_INVALID_FIELD_NAME 111
#define X509_R_INVALID_PSS_PARAMETERS 112
#define X509_R_INVALID_TRUST 113
#define X509_R_ISSUER_MISMATCH 114
#define X509_R_KEY_TYPE_MISMATCH 115
#define X509_R_KEY_VALUES_MISMATCH 116
#define X509_R_LOADING_CERT_DIR 117
#define X509_R_LOADING_DEFAULTS 118
#define X509_R_NEWER_CRL_NOT_NEWER 119
#define X509_R_NOT_PKCS7_SIGNED_DATA 120
#define X509_R_NO_CERTIFICATES_INCLUDED 121
#define X509_R_NO_CERT_SET_FOR_US_TO_VERIFY 122
#define X509_R_NO_CRLS_INCLUDED 123
#define X509_R_NO_CRL_NUMBER 124
#define X509_R_PUBLIC_KEY_DECODE_ERROR 125
#define X509_R_PUBLIC_KEY_ENCODE_ERROR 126
#define X509_R_SHOULD_RETRY 127
#define X509_R_UNKNOWN_KEY_TYPE 128
#define X509_R_UNKNOWN_NID 129
#define X509_R_UNKNOWN_PURPOSE_ID 130
#define X509_R_UNKNOWN_TRUST_ID 131
#define X509_R_UNSUPPORTED_ALGORITHM 132
#define X509_R_WRONG_LOOKUP_TYPE 133
#define X509_R_WRONG_TYPE 134
#define X509_R_NAME_TOO_LONG 135
#define X509_R_INVALID_PARAMETER 136
#define X509_R_SIGNATURE_ALGORITHM_MISMATCH 137

#endif
